254998389 has 4 divisors (see below), whose sum is σ = 339997856. Its totient is φ = 169998924.

The previous prime is 254998369. The next prime is 254998391. The reversal of 254998389 is 983899452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 254998389 - 2²¹ = 252901237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254998349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42499729 + ... + 42499734.

It is an arithmetic number, because the mean of its divisors is an integer number (84999464).

Almost surely, 2^254998389 is an apocalyptic number.

It is an amenable number.

254998389 is a deficient number, since it is larger than the sum of its proper divisors (84999467).

254998389 is an equidigital number, since it uses as much as digits as its factorization.

254998389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84999466.

The product of its digits is 5598720, while the sum is 57.

The square root of 254998389 is about 15968.6689802250. The cubic root of 254998389 is about 634.1312351271.

The spelling of 254998389 in words is "two hundred fifty-four million, nine hundred ninety-eight thousand, three hundred eighty-nine".